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The family said they enjoyed the waterfront setting and upbeat music, even though the baby slept through most of the show.

Many in the crowd were prepared with picnic snacks as they listened to classic-rock cover bands before the fireworks. Juliette Tamar, 34, of Uniondale arrived four hours early with her family, toting a feast of fried chicken, stewed peas and watermelon.

“We come every year, for the kids,” she said. “We cooked it all last night.”

Bernard Rebuffel, 29, of Brooklyn, said this was his first time attending Nassau’s fireworks show.

“Celebrating America is a meaningful thing to me,” he said. “People talk about barbecues and parties, but we should also remember the history.”

People lined up in droves for the ice cream trucks and other cold snacks in the balmy weather as kids danced to “Shake, Rattle and Roll.”

Andrew Hinds, 23, an ice cream seller, said it was one of the biggest sale days for the Good Humor ice cream trucks stationed at the event. He said he had already sold out of SpongeBob pops by 7:15 p.m.